George f



G. F. PEMBERTON.

BRICK CUTTING MACHINE APPLICATION HLED MAR. 21. 1912.

1,302,964. Patented May 6, 1919.

E 5 A A g4i 15 WITNESSES: ,2 V n X? INVENTOR M M flea/961717972 562 2 0)? I BYWM J Amoan'ms ETERS co.. pnomuma. WASHINCIDN. n

Un rnn s'ratrns PATENT OFFICE.

enonen r. PEMBERTON, or LINCOLN, CALIFORNIA, ASSIGNOR 'roeLADnmG, McBEAN &

COMPANY, or SAN FRANCISCQCALIFORNIA, A CORPORATION OF CALIFORNIA.

BRICK-CUTTING- MACHINE.

7 Application filed March 21, 1917. Serial No. 156,281.

T0 at whom it may concern Be it known that I, Gnonon F. PEMBER- TON, a citizen of the United States, residing at Lincoln, in the county of Placer and State of California, have invented new and useful Improvements in Brick-Cutting Machines, of which the following is a specification.

This invention relates to machines for cutting freshly made blank bricks or plastic blocks into irregular shapes, whereby to form bricks for use in arches and elsewhere where tapering, trapezoidal or other shapes are required.

The object of the invention is to provide a simple and efficient device of this charactergwhich will reduce the labor involved in cutting the bricks and which will also be adjustable to provide for cutting a variety of shapes and sizes in one machine.

In carrying out this object, I employ a stationary support to receive the freshly made blank bricks and a plunger carrying an open rectangular frame across which, wires or other cutting devices are stretched and positioned according to the shape, form and number of bricks desired, and means for depressing the plunger whereby to press the rectangular frame against the support to cause the wires to pass through the blank brick and cut the same into one or more bricks of the required size and shape.

One form which my invention may assume is exemplified in the following description and illustrated in the accompanying drawings, in which Figure 1 shows a side elevation of a machine embodying my invention.

Fig. 2. shows a plan-view in section taken on the line 22 of Fig. 1.

Fig. 3 shows the manner of securing the ends of the cutting wires to the frame.

In the drawings, the machine is, shown as comprising a support 10, upon which vertical frame bars 11, with top and bottom lates 12 and 13, respectively, are secured.-

eciprocally mounted upon the support is a plunger comprising vertical rods 14; working in bearings 15 on the top and bottom plates 12 and 13, said rods being tied together at their upper ends by a cross head 16. P0- sitioned upon the rods 14, between the top and bottom plates, is a rectangular open frame 17, the side bars of which are slotted at suitable intervals, as shown at 18, to receive a bolt or pin 19 for adjustably securing Specification of Letters Patent.

Patented May 6, 1919.

a plate v20 thereon. Below each slot 18 the side bars are recessed, as shown at 21, to receive a hook 22 held adjustably in place on the lower end of the plate 20 by means of a thumb screw 23. To the opposite hooks 22 wires 2% are connected and stretched to the desired degree of tautness and adjusted relatively by positioning the plates 20 until the required outlines of the bricks to be produced are obtained.

A bar 25 is pivoted tothe top plate 12 and a lever 26 is fulcrumed thereon, said lever being connected to the cross head 16'and carrying a weight 27 at its outer end.

In operation, a pad 28, of suitable material, is placed upon the bottom plate 13 and the blank brick to be operated upon is set thereon. The plunger is normally elevated on account of the weighted lever, and by movement of the lever the rectangular open frame is pressed downwardly upon the pad 28, so that the wires thereon pass through the blank and cut the same into one *the usual forms required for arch bricks or other shapes. The machine may obviously comp-rise any number of wires, in any arrangement desired, whereby to produce a plurality of bricks of the same or diiferent shapes and sizes at one operation and also may be operated by power, if desired.

Various changes in the construction and arrangement of the several parts herein shown and described may be employed without departing from the spirit of my invention as disclosed in the appended claims.

Having thus described my invention, what I claim and desire to secure'by Letters Patent is-- 1. A machine for cutting freshly made bricks or plastic blanks into different shapes, comprising a main'stationary frame, a stationary support for the blank within said frame, a rectangular-shaped cutting frame vertically movable in the main frame, manually operated means for imparting move ment thereto, longitudinally disposed slots formed in the sides and ends of the cutting frame, blocks slidably and adjustably mounted in each slot, means on each block for securing the same when adjusted, wire. securing and tightening means carried by the blocks and recesses formed in the lower edge of the side and end sections of the cutting frame, permitting the wires to assume a plane parallel with the lowerface-of'the cutting'frame. i

2. A machine for cutting freshly made bricks or plastic blanks into difierent shapes, comprising a main stationary frame, a stationary support for the blank within said frame, a rectangular-shaped cutting frame vertically movable in the main frame, guiding members secured to said frame and reciprocalin the main frame, means for imparting an up and: down movement to the cutting frame, the sides and ends of said cutting frame being angle-shaped in cross section, longitudinally disposed slots formed in the sides and ends of the angle-shaped cutting'frame, blocks engaging the inner and exterior sides of the side and end sections of the cutting frame, said blocks being slidably and adjustably mounted in the slots,

means on each block for securing the same when adjusted, said blocks being arranged in pairs to support cutting wires, hooks formed onone of each pair of blocks for the reception of a cutting wire, tightening means on the opposite block of each'pair for tightening and securing the wires and recesses formed on the lower edge of the angleshaped sideand end sections of the cutting frame for the reception of the wires and to permit the wires to assume a plane parallel With the lower edges of said side and end sections.

In testimony whereof I have hereunto set my hand inthe presence of two subscribing witnesses.

GEORGE IF. PEMBERTON.

Witnesses:

AUGUSTUS L. GLADDING, W. M. SPARKS, Jr.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner 01' Patentu,

Washington, D. G." 

